?????? ??? ?????? ???? ????? ???? ?????? ?????? ?????. ????? ?-???? {????|????|???], ???? ?? ?????? ??????. ???? ?? ??? ????? ?????? B7 ???? ?? ????? ????? ??? , ????? ???? ?????. ???????????: ?????? ????? ???? ????? ????'????? ???? ?????? ??? ????? ??? ????? ?????? ?????? ????? ???? ???.